Turbinafuranone A–C, new 2-furanone analogues from marine macroalga Turbinaria ornata as prospective anti-hyperglycemic agents attenuate tyrosine phosphatase-1B
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DOI: 10.1007/s00044-021-02762-1
Abstract: Chemical investigation of Phaeophytan marine macroalga Turbinaria ornata (family Sargassaceae) resulted in the characterization of three 2-furanone analogues, which were characterized as 6, 7-dihydroxy-8-methyl-3-(5′-methyloct-4′-en-1′-yl)-hexahydrocyclooct-1-en-[1, 2-c]furan-11-one (turbinafuranone A), 4-hydroxy-3-isopropyl-7, 8-dimethyl-6-(pentan-2′-acetate)-hexahydrocycloocta-1-en-[1, 2-c]furan-11-one (turbinafuranone B), and 6-acetoxy-8-ethyl-5-methoxy-3-(2′-methylhex-4′-en-1′-yl)-pentahydrocycloocta-1, 7-dien-[1,… read more here.
Keywords: turbinafuranone; tyrosine phosphatase; turbinaria ornata; marine macroalga ... See more keywords
A novel anti-hyperglycemic sulfated pyruvylated polysaccharide from marine macroalga Hydropuntia edulis.
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DOI: 10.1080/14786419.2022.2140660
Abstract: Dipeptidyl peptidase is a crucial enzyme that regulates glucose metabolism by degrading incretins, such as glucagon-like-peptide-1, thereby reducing insulin secretion from the pancreatic β-cells. Consequently, dipeptidyl peptidase-IV inhibitors are an important remedial approach to moderate… read more here.
Keywords: macroalga hydropuntia; marine macroalga; hydropuntia edulis; pyruvylated polysaccharide ... See more keywords
Chemical Defense against Herbivory in the Brown Marine Macroalga Padina gymnospora Could Be Attributed to a New Hydrocarbon Compound
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DOI: 10.3390/plants12051073
Abstract: Brown marine macroalga Padina gymnospora (Phaeophyceae, Ochrophyta) produces both secondary metabolites (phlorotannins) and precipitate calcium carbonate (CaCO3—aragonite) on its surface as potential defensive strategies against herbivory. Here, we have evaluated the effect of natural concentrations… read more here.
Keywords: macroalga padina; brown marine; padina gymnospora; new hydrocarbon ... See more keywords